超级公告板源码
拷贝下面的代码到你的html文件的<body>和</body>之间；

<script language="JavaScript1.2">

//设置下面的三行参数，分别是宽度、高度和背景色。
var scrollerwidth=250
var scrollerheight=100
var scrollerbgcolor='#6295e4'

//下面设置显示的文字内容，可以使用标准的HTML语法。
var messages=new Array()
messages[0]="<a href='../index.html'>点这里回首页，欢迎你访问“尖锋网络快车”</a>"
messages[1]="<a href='http://soyou.edu.cn'>点这里去SOYOU教育网的首页</a>"
messages[2]="<a href='http://www.soyou.com'>点这里去SOYOU主干网首页</a>"
messages[3]="<a href='http://www.soyou.edu.cn/diannao/index.html'>点这里去SOYOU电脑教育首页</a>"
messages[4]="<a href='mailto:[email protected]'>点这里联系卫兵，有任何意见建议请来信。</a>"

//下面的代码不要改动

if (messages.length>1)
i=2
else
i=0

function move1(whichlayer){
tlayer=eval(whichlayer)
if (tlayer.top>0&&tlayer.top<=5){
tlayer.top=0
setTimeout("move1(tlayer)",3000)
setTimeout("move2(document.main.document.second)",3000)
return
}
if (tlayer.top>=tlayer.document.height*-1){
tlayer.top-=5
setTimeout("move1(tlayer)",100)
}
else{
tlayer.top=scrollerheight
tlayer.document.write(messages[i])
tlayer.document.close()
if (i==messages.length-1)
i=0
else
i++
}
}

function move2(whichlayer){
tlayer2=eval(whichlayer)
if (tlayer2.top>0&&tlayer2.top<=5){
tlayer2.top=0
setTimeout("move2(tlayer2)",3000)
setTimeout("move1(document.main.document.first)",3000)
return
}
if (tlayer2.top>=tlayer2.document.height*-1){
tlayer2.top-=5
setTimeout("move2(tlayer2)",100)
}
else{
tlayer2.top=scrollerheight
tlayer2.document.write(messages[i])
tlayer2.document.close()
if (i==messages.length-1)
i=0
else
i++
}
}

function move3(whichdiv){
tdiv=eval(whichdiv)
if (tdiv.style.pixelTop>0&&tdiv.style.pixelTop<=5){
tdiv.style.pixelTop=0
setTimeout("move3(tdiv)",3000)
setTimeout("move4(second2)",3000)
return
}
if (tdiv.style.pixelTop>=tdiv.offsetHeight*-1){
tdiv.style.pixelTop-=5
setTimeout("move3(tdiv)",100)
}
else{
tdiv.style.pixelTop=scrollerheight
tdiv.innerHTML=messages[i]
if (i==messages.length-1)
i=0
else
i++
}
}

function move4(whichdiv){
tdiv2=eval(whichdiv)
if (tdiv2.style.pixelTop>0&&tdiv2.style.pixelTop<=5){
tdiv2.style.pixelTop=0
setTimeout("move4(tdiv2)",3000)
setTimeout("move3(first2)",3000)
return
}
if (tdiv2.style.pixelTop>=tdiv2.offsetHeight*-1){
tdiv2.style.pixelTop-=5
setTimeout("move4(second2)",100)
}
else{
tdiv2.style.pixelTop=scrollerheight
tdiv2.innerHTML=messages[i]
if (i==messages.length-1)
i=0
else
i++
}
}

function startscroll(){
if (document.all){
move3(first2)
second2.style.top=scrollerheight
}
else if (document.layers){
move1(document.main.document.first)
document.main.document.second.top=scrollerheight+5
document.main.document.second.visibility='show'
}
}

window.onload=startscroll

</script>
   <ilayer id="main" width=90; height=90; bgcolor=red;>
   <layer id="first" left=0 top=1 width=&{scrollerwidth};>
   <script language="JavaScript1.2">
if (document.layers)
document.write(messages[0])
</script>
   </layer>
   <layer id="second" left=0 top=0 width=&{scrollerwidth}; visibility=hide>
   <script language="JavaScript1.2">
if (document.layers)
document.write(messages[1])
</script>
   </layer>
   </ilayer>
   <script language="JavaScript1.2">
if (document.all){
document.writeln('<span id="main2" style="position:relative;width:'+scrollerwidth+';height:'+scrollerheight+';overflow:hiden;background-color:'+scrollerbgcolor+'">')
document.writeln('<div style="position:absolute;width:'+scrollerwidth+';height:'+scrollerheight+';clip:rect(0 '+scrollerwidth+' '+scrollerheight+' 0);left:0;top:0">')
document.writeln('<div id="first2" style="position:absolute;width:'+scrollerwidth+';left:0;top:1;">')
document.write(messages[0])
document.writeln('</div>')
document.writeln('<div id="second2" style="position:absolute;width:'+scrollerwidth+';left:0;top:0">')
document.write(messages[1])
document.writeln('</div>')
document.writeln('</div>')
document.writeln('</span>')
}
</script>